Home / 3,859.57-5,326.21-2,091.18

Finding the Fourth Proportional to 3,859.57, 5,326.21 and 2,091.18

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Solution

The fourth proportional to 3,859.57, 5,326.21 and 2,091.18 is: 2,885.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.57 : 5,326.21 = 2,091.18 : x
  2. Step 2: Convert to fraction form
    3,859.57/5,326.21 = 2,091.18/x
  3. Step 3: Cross multiply
    3,859.57x = 5,326.21 × 2,091.18
  4. Step 4: Simplify right side
    3,859.57x = 11,138,063.83
  5. Step 5: Solve for x
    x = 11,138,063.83/3,859.57
  6. Step 6: Final answer
    x = 2,885.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.